/* * Clutter. * * An OpenGL based 'interactive canvas' library. * * Authored By Neil Roberts * * Copyright (C) 2008 OpenedHand * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library. If not, see . * * */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #define CLUTTER_DISABLE_DEPRECATION_WARNINGS #include "clutter-main.h" #include "clutter-private.h" #include "deprecated/clutter-frame-source.h" #include "deprecated/clutter-timeout-interval.h" typedef struct _ClutterFrameSource ClutterFrameSource; struct _ClutterFrameSource { GSource source; ClutterTimeoutInterval timeout; }; static gboolean clutter_frame_source_prepare (GSource *source, gint *timeout); static gboolean clutter_frame_source_check (GSource *source); static gboolean clutter_frame_source_dispatch (GSource *source, GSourceFunc callback, gpointer user_data); static GSourceFuncs clutter_frame_source_funcs = { clutter_frame_source_prepare, clutter_frame_source_check, clutter_frame_source_dispatch, NULL }; /** * clutter_frame_source_add_full: (rename-to clutter_frame_source_add) * @priority: the priority of the frame source. Typically this will be in the * range between %G_PRIORITY_DEFAULT and %G_PRIORITY_HIGH. * @fps: the number of times per second to call the function * @func: function to call * @data: data to pass to the function * @notify: function to call when the timeout source is removed * * Sets a function to be called at regular intervals with the given * priority. The function is called repeatedly until it returns * %FALSE, at which point the timeout is automatically destroyed and * the function will not be called again. The @notify function is * called when the timeout is destroyed. The first call to the * function will be at the end of the first @interval. * * This function is similar to g_timeout_add_full() except that it * will try to compensate for delays. For example, if @func takes half * the interval time to execute then the function will be called again * half the interval time after it finished. In contrast * g_timeout_add_full() would not fire until a full interval after the * function completes so the delay between calls would be 1.0 / @fps * * 1.5. This function does not however try to invoke the function * multiple times to catch up missing frames if @func takes more than * @interval ms to execute. * * Return value: the ID (greater than 0) of the event source. * * Since: 0.8 * * Deprecated: 1.6 */ guint clutter_frame_source_add_full (gint priority, guint fps, GSourceFunc func, gpointer data, GDestroyNotify notify) { guint ret; GSource *source = g_source_new (&clutter_frame_source_funcs, sizeof (ClutterFrameSource)); ClutterFrameSource *frame_source = (ClutterFrameSource *) source; _clutter_timeout_interval_init (&frame_source->timeout, fps); if (priority != G_PRIORITY_DEFAULT) g_source_set_priority (source, priority); g_source_set_name (source, "Clutter frame timeout"); g_source_set_callback (source, func, data, notify); ret = g_source_attach (source, NULL); g_source_unref (source); return ret; } /** * clutter_frame_source_add: (skip) * @fps: the number of times per second to call the function * @func: function to call * @data: data to pass to the function * * Simple wrapper around clutter_frame_source_add_full(). * * Return value: the ID (greater than 0) of the event source. * * Since: 0.8 * * Deprecated: 1.6 */ guint clutter_frame_source_add (guint fps, GSourceFunc func, gpointer data) { return clutter_frame_source_add_full (G_PRIORITY_DEFAULT, fps, func, data, NULL); } static gboolean clutter_frame_source_prepare (GSource *source, gint *delay) { ClutterFrameSource *frame_source = (ClutterFrameSource *) source; gint64 current_time; #if GLIB_CHECK_VERSION (2, 27, 3) current_time = g_source_get_time (source) / 1000; #else { GTimeVal source_time; g_source_get_current_time (source, &source_time); current_time = source_time.tv_sec * 1000 + source_time.tv_usec / 1000; } #endif return _clutter_timeout_interval_prepare (current_time, &frame_source->timeout, delay); } static gboolean clutter_frame_source_check (GSource *source) { return clutter_frame_source_prepare (source, NULL); } static gboolean clutter_frame_source_dispatch (GSource *source, GSourceFunc callback, gpointer user_data) { ClutterFrameSource *frame_source = (ClutterFrameSource *) source; return _clutter_timeout_interval_dispatch (&frame_source->timeout, callback, user_data); } /** * clutter_threads_add_frame_source_full: (rename-to clutter_threads_add_frame_source) * @priority: the priority of the frame source. Typically this will be in the * range between %G_PRIORITY_DEFAULT and %G_PRIORITY_HIGH. * @fps: the number of times per second to call the function * @func: function to call * @data: data to pass to the function * @notify: function to call when the timeout source is removed * * Sets a function to be called at regular intervals holding the Clutter * threads lock, with the given priority. The function is called repeatedly * until it returns %FALSE, at which point the timeout is automatically * removed and the function will not be called again. The @notify function * is called when the timeout is removed. * * This function is similar to clutter_threads_add_timeout_full() * except that it will try to compensate for delays. For example, if * @func takes half the interval time to execute then the function * will be called again half the interval time after it finished. In * contrast clutter_threads_add_timeout_full() would not fire until a * full interval after the function completes so the delay between * calls would be @interval * 1.5. This function does not however try * to invoke the function multiple times to catch up missing frames if * @func takes more than @interval ms to execute. * * See also clutter_threads_add_idle_full(). * * Return value: the ID (greater than 0) of the event source. * * Since: 0.8 * * Deprecated: 1.6 */ guint clutter_threads_add_frame_source_full (gint priority, guint fps, GSourceFunc func, gpointer data, GDestroyNotify notify) { ClutterThreadsDispatch *dispatch; g_return_val_if_fail (func != NULL, 0); dispatch = g_slice_new (ClutterThreadsDispatch); dispatch->func = func; dispatch->data = data; dispatch->notify = notify; return clutter_frame_source_add_full (priority, fps, _clutter_threads_dispatch, dispatch, _clutter_threads_dispatch_free); } /** * clutter_threads_add_frame_source: (skip) * @fps: the number of times per second to call the function * @func: function to call * @data: data to pass to the function * * Simple wrapper around clutter_threads_add_frame_source_full(). * * Return value: the ID (greater than 0) of the event source. * * Since: 0.8 * * Deprecated: 1.6 */ guint clutter_threads_add_frame_source (guint fps, GSourceFunc func, gpointer data) { g_return_val_if_fail (func != NULL, 0); return clutter_threads_add_frame_source_full (G_PRIORITY_DEFAULT, fps, func, data, NULL); }